diff --git a/examples/twitter/query.body b/examples/twitter/query.body
index a81b84aaa32..8018ff6f5f5 100644
--- a/examples/twitter/query.body
+++ b/examples/twitter/query.body
@@ -2,7 +2,7 @@
     "queryType": "groupBy",
     "dataSource": "twitterstream",
     "granularity": "all",
-    "dimension": ["lang"],
+    "dimensions": ["lang"],
     "threshold": 10,
     "metric": "totally",
     "aggregations":[